如何在Oracle中查询事务计数

数据库扩展期间可能需要的脚本。计算两个特定日期之间的交易编号。

该脚本已在11gR1和11gR2中进行了测试。在生产环境中运行脚本之前，请在测试服务器上对其进行测试。

 

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SELECT BEGIN_TIME, END_TIME, TXNCOUNT, ( (END_TIME - BEGIN_TIME) * 24 * 60 * 60) DIFFSECOND, TO_CHAR ( (TXNCOUNT / ( (END_TIME - BEGIN_TIME) * 24 * 60 * 60)), '999999.99') TRANXPERSECOND FROM V$UNDOSTAT WHERE     BEGIN_TIME >= TO_DATE('20.09.2014 00:00','DD.MM.YYYY HH24:MI') AND BEGIN_TIME <= TO_DATE('25.09.2014 00:00','DD.MM.YYYY HH24:MI') AND (TXNCOUNT / ( (END_TIME - BEGIN_TIME) * 24 * 60 * 60)) > 50 ORDER BY 1;

以下查询可用于在Oracle数据库中查找事务计数。

Oracle中每天的平均交易数

 

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SELECT V1          "Total Commits",        V2          "Total Rollbacks",        V3          "Total User Calls",        T1          "Uptime in days",        S1 / T1     "Avg Daily DML Transactions",        V3 / T1     "Avg Daily User Calls"   FROM (SELECT VALUE     V1           FROM V$SYsstAT          WHERE NAME = 'user commits'),        (SELECT VALUE     V2           FROM V$SYsstAT          WHERE NAME = 'user rollbacks'),        (SELECT SUM (VALUE)     S1           FROM V$SYsstAT          WHERE NAME IN ('user commits', 'user rollbacks')),        (SELECT VALUE     V3           FROM V$SYsstAT          WHERE NAME = 'user calls'),        (SELECT SYSDATE - STARTUP_TIME T1 FROM V$INSTANCE);

每日平均提交次数

 

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SELECT (V1 + V2) / T1 "Avg Daily DML Transactions",     V1 "User Commit",     V2 "User Rollback"   FROM (SELECT VALUE V1           FROM V$SYsstAT          WHERE NAME = 'user commits'),        (SELECT VALUE V2           FROM V$SYsstAT          WHERE NAME = 'user rollbacks'),        (SELECT SYSDATE - STARTUP_TIME T1 FROM V$INSTANCE);

最近24小时的交易计数

 

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SELECT 'DATABASE',        'TOPLAM TRANSACTION - 24 SAAT',        TO_CHAR (MAX (NEXT_CHANGE#) - MIN (FirsT_CHANGE#),'9,999,999') VALUE   FROM V$LOG_HISTORY WHERE TO_DATE (FirsT_TIME, 'DD/MM/RR HH24:MI:SS') > Trunc (SYSDATE, 'HH24') - 1;